Civic EG

Right so since i put my car together I've had a small problem with the idle, so right away I change the IACV seal but still had the same problem.

Then I change the FICV and when I did this I saw that the old one had a bulge in the pipe caused but coolent not getting throught the valve, great I thought works great now well happy.

Its been fitted for less than a week and the idle problem is back, it sits HIGH between 1500 and 2500 rpm and sometimes hunts about so I know its not right.

Do you think I should try changing the IACV or could it be my TB giving me jip???

All help greatfully accepted and needed well quick as need her sweet by Thursday evening when I leave on my holiday

is your TPS any good?

my car did the same thing a year or so back, did the same thing u did, turned out to be the intake manifold gasket leaking

SloppyYoda wrote:is your TPS any good?

Not been getting any ECU codes come up and have checked it a few times.

I didn't taken the intake manifold when I sprayed the engine so I haven't broken the seal and I know it ran sweet as before I put it in the coupe but will try tightening all the bolts tonight.

Cheers for the tips

my car started surging when the water pump went. doubt thats your problem but Im just gonna throw that out there.

TPS caused mine, but like you said you don't get any CEL codes.
Check all your vacuum lines, that was also a problem I had.
And what intake manifold do you have? if you've swapped it out for an aftermarket one, make sure the butterfly valve (little black box connected to your intake manifold and fuel pressure via vacuum lines) is disconnected and your lines re-routed. I had iratic idling problems when I had a vacuum conflict.